3302F Mainframe Operation Manual 35
MPPT:CR:Wmax{SP}{NR1}{NL}
Set CR mode maximum conductance change
width at MPPT，unit：Ω
same as CR range 1
ex: 20Ω=50mSiemens
MPPT:CV:START{SP}{NR2}{NL}
Set CV mode starting voltage of whole
scan，unit：V
same as CV range 2
MPPT:CV:STOP{SP}{NR2}{NL}
Set CV mode end voltage value at the end
of whole scan，unit：V
same as CV range 2
MPPT:CV:IL{SP}{NR2}{NL}
Set CV mode stop whole scan lower limit
current to P&O，unit：A
same as DAM range
MPPT:CV:IH{SP}{NR2}{NL}
Set CC mode stop whole scan upper limit
current to P&O，unit：A
same as DAM range
MPPT:CV:Wmin{SP}{NR1}{NL}
Set CV mode minimum voltage change width
at MPPT，unit：V
same as CV range 2
MPPT:CV:Wmax{SP}{NR1}{NL}
Set CV mode maximum voltage change width
at MPPT，unit：V
same as CV range 2
MPPT:SCAN:STEP{SP}{NR1}{NL}
Set step value in whole scan，1~2000count 60000 or 62500
count=Full scale
MPPT:SCAN:Tstep{SP}{NR1}{NL} Set time step value in whole scan，unit：
ms
10~2000ms
MPPT:PO:Tstep{SP}{NR1}{NL}
Set time step value in P&O，unit：ms
10~2000ms
MPPT:PO:TIME{SP}{NR1}{NL}
Set P&O time，unit：sec
10~3600000sec
MPPT:SRATE{SP}{NR2}{NL}
Set step width change rate
0.01~1.00=1%~100%
MPPT:SCOUNT{SP}{NR1}{NL}
Set step width change judgment step no
2~100
MPPT{SP}{ON|OFF}{NL}
Set MPPT start or stop test
MPP?{NL}
Read MPP value，format:”V,I,P”
(voltage,current,power)，If electronic
load echo ”END”mean no new MPP value on
memory
EXAMPLE 1: MPPT CC MODE
REM
MPPT:MODE CC
MPPT:CC:START 0.5
MPPT:CC:STOP 1.0
MPPT:CC:VH 13.0
MPPT:CC:VL 0.0
MPPT:CC:Wmin 0.01
MPPT:CC:Wmax 0.1
MPPT:SRATE 0.5
MPPT:SCAN:STEP 10
MPPT:SCAN:Tstep 10
MPPT:PO:Tstep 10
MPPT:PO:TIME 10
MPPT:SCOUNT 3
MPPT ON
MPP? = 12.418,1.0010,12.430
MPP? = 12.417,1.0020,12.441
MPP? = 12.418,1.0020,12.442
MPPT OFF
MPP? = 12.416,1.0020,12.440
MPP? = END
